If you don’t keep up with your credit card or loan payments, your original creditor may send your unpaid debt to a collection agency. A collection agency (or debt collector) is a person or a company who collects debts owed to others, usually when those debts are past-due. In addition, your debt may be reported to a credit reporting agency.
A collection on your credit report may show potential lenders that you defaulted on a debt and had to have that account sent to debt collectors. Collection accounts are considered negative information in your credit history.